Put Petrol in a Diesel Car in Rowlands Castle? Don't Start It
With the tank still carrying the fuel and the engine not yet turned over, almost every job needs only a drain, so leave the engine off. That outcome is decided in the minutes straight after filling up, rather than by the amount that went in. Across Rowlands Castle and the rest of Hampshire, Petrol in Diesel drains the vehicle and flushes it where it stands, whether at a roadside, on a private drive or at a forecourt. One call our way will be enough: our team can show you what happens from here. Try this first.
Now what? Petrol in a diesel, step by step
- Don't fire it up. Turned on regardless? Then do not believe it. Diesel in a petrol car normally will not run, so the motorist stops and the damage halts with them. Petrol in a diesel? It starts. It ticks over. It pulls away normally, for several miles. Drivers get that muddled. It is not okay — the fuel system is wearing down every mile you drive.
- Two things, diesel: it burns, and on the way through it keeps your high-pressure fuel pump and injectors greased. Petrol only manages the one. Which is why the car's ignition remains off too — switch it on and you commonly prime your system, and that's petrol exiting that tank for just those components.
- Don't water down it. Diesel poured on top gets rid of nothing, so all you get is more of what was already there, because percentage is not how a diesel fuel system copes with petrol. Super unleaded? Simply petrol. The grade makes no difference.
- We'd rather get to an odd location than have it started — so if you sensibly can, stay still. Nothing is easier to sort than a motor that has not moved. On the verge on Redhill Road, that means hazards on and leave the car.
- Check where you are before ringing. A postcode that starts PO9 6, and the name of whatever is closest to you. Otherwise the technician circles rather than arriving.
- What was put in, approximately how many litres, and also whether the car has started — those three details determine the whole job. Phone 0333 366 0103 and tell us.
Don't run it home. Petrol-thinned diesel has gone through your high-pressure fuel pump in real volume on the road in, and the trip back would more or less double that for nothing at all. Phone us — the platform is fine. There is no need to stand over your Volkswagen Golf at the nearest station whilst the work gets done, and we would far rather speak to you tonight than learn on Monday.
If you've put petrol in your diesel Audi A4 around Rowlands Castle and you are now stranded outside Lidl with a boot full of shopping, phone us. Never start it again to get out of that space. We will come out to you, drain the tank, rinse those fuel lines and put new diesel in so you can drive home. A mile or so at easy throttle pulls very little of it, so those are often the simple ones.
A diesel pump meters fuel to demand, and a rushed morning dash demands plenty — so three miles in your Peugeot 3008 feels like nothing and isn't. Twenty to nine by Rowlands Castle St John's Church of England Controlled Primary School, running late, a receipt in your hand showing unleaded: hazards on, motor off, ring us.
Hardly ever the trouble, the place. On-street is the commonest place our engineers work, and a narrow parking space is far preferable to a vehicle that has been driven somewhere more convenient. What does help, when you call from near Deerleap, is three things: the side the filler is on, whether our van can pull up alongside without blocking the road, and whether anything has run since you filled up. Then the Vauxhall Insignia gets emptied, the filter changed where a workable one exists, the fuel lines cleaned and fresh fuel put through the whole circuit — as by now the worst of it is in the lines, not your tank.
A couple of streets, then it stopped. Throttle soft, idle lumpy, and your diesel Mercedes GLC is parked up near Rowlands Castle Parish Hall. Your engine isn't failing — that sluggishness is fuel that won't build pressure. There's no light on the dash for it, and so vehicles like yours typically get driven again before somebody picks up the phone. Please don't. Off, then ring us.
Forecourt draining for petrol in a diesel
A fair portion of this job gets completed at the pump, as that is where it usually begins. The drain usually gets done right there. Still on the forecourt at Shell? Given the station's agreement, that's a spot our technicians work, and often.
Before the motor has started — the forecourt is the only setting this is spotted. Our technicians can still deal with it where it is, even away from the pumps. In a car park, on a private drive or in a lay-by, the car has been fired up and driven there, and that sucked fuel through the fuel filter and into your high-pressure pump, right from that tank. None of that is a catastrophe, but the flush then has to reach past the tank to your lines and the filter, and the few seconds between reading the receipt and going for the keys are what determine that.
The attendants will usually happily roll the vehicle out from the pump so the next motorist can get through. That's worth doing. Four car lengths isn't worth a restart.
Areas our vans reach around Rowlands Castle
As a village, Rowlands Castle sees a regular visit, while its neighbours round about go along on that same run: Durrants and Finchdean, Deanlane End and Stubbermere, West Leigh.
There are dedicated pages for nearly all locations across Hampshire, and the ones listed above are simply the immediate neighbours — so yours being missing from the list says nothing whatsoever about if our technicians come. Ring us to ask rather than guessing, particularly where you're on a border or somewhere the satnav struggles with.
The map shows the area the page covers. Every bit of that is ground our technicians serve: a kerbside, a forecourt, a drive, a car park. You do not bring your car anywhere.
Stopped at the kerbside somewhere in Rowlands Castle?
Some drivers have no sensible place to pull over at all. A normal call for us and not an unusual one: worked out after setting off, finished up on the verge beside The Green or in a lay-by with the hazards on.
Stay with the motor when it's safe to sit inside, but out of the car when it isn't. Every mile a diesel obliges you for on petrol drags the mixture further into the system — and oblige it usually will, which is why the engine doesn't get restarted to limp somewhere safer. However inconvenient the spot, it is no problem for us to come to it, and that is far better for the car than driving on.
So you've run it? Petrol in a diesel over a couple of miles
Here is where the Waterlooville Bypass comes in, under 3 miles away from Rowlands Castle. A misfilled diesel will usually take you onto it and some way along before anything feels wrong, while the signs when they come are usually a loss of power, a rough idle and some smoke instead of a neat stop.
Don't start it to reposition. Come off at the first sensible exit then switch off. Long run? Anything approaching the under 10 miles to the closest city and you should presume the lot — filter, pump, injectors, all of that arrived at by the petrol. Say that on the phone, since it alters what goes in the van.
A little about Rowlands Castle
Rowlands Castle is a village situated in a riverside setting in Hampshire, with an elevation of 34 metres above sea level. Rowlands Castle lies near the cities of Chichester and Portsmouth, and is surrounded by smaller settlements such as Durrants and Finchdean. Rowlands Castle has a population of approximately 768 residents, who mostly live in detached houses. Rowlands Castle is located about 55 miles from London, making it a relatively rural community in the South East region.
The job in Rowlands Castle, step by step
- Our technicians find out what was put in, how much, and whether your engine has run. The answers alter the work, which is why our engineers ask before pricing.
- The polluted fuel is drawn from that tank.
- Lines flushed, filter cleared. Whatever remains after that is not the thing that started the issue.
- Fresh diesel goes in, and then the system gets bled.
- Our technicians fire it up and make sure it runs properly on clean diesel.
At that point it is ready to pull away. We do all of it wherever the car has come to a stop, which means it never needs to go to a workshop, and when it has been noticed soon, it's very rare for there to be long-term damage.
A different matter: AdBlue in a diesel tank in Rowlands Castle
The problem is not the same, though the opening rule is — don't fire it up — if what was put in was AdBlue rather than petrol. Petrol does two things to diesel: weakens it, and takes away the protection your fuel system depends on. Corrosion and build-up are what a diesel tank gets instead, since AdBlue is urea in water.
Often the more serious of the two, AdBlue — and the detail sits on its own Rowlands Castle page. Both are ours to deal with.
What a petrol-in-diesel drain costs in Rowlands Castle
Truthfully, no single number fits on a page like this. The job varies. Here's what varies it:
- Has it been started or driven? Nothing else matters for as much.
- How much of the wrong fuel went in, measured against how much your tank holds.
- The type of liquid in the tank, petrol or AdBlue.
- Whether a van can sensibly get to the car and work on it, which hinges on where your car is.
A firm answer instead of a range is what you get for telling us three things: your vehicle, the amount, and whether it has run. Not urgent, with the car at home and going nowhere? Then does this job.
Petrol in diesel questions from Rowlands Castle drivers
At a petrol station around Rowlands Castle, can you do a fuel drain there?
Yes, and it's where a big portion of this work gets done. Regularly, provided the site consents: Morrisons, plus every other forecourt nearby. Say on the phone where precisely you have stopped. Whether our technicians can work in that spot is something we answer there and then.
Is there a safe quantity of petrol in a diesel?
Whether the motor has run counts far more, though the ratio matters too, rather than the litres. Five litres into an almost dry tank is not five into a full one, no. But both land on the same query in the end: has that blend been pulled right through, or has it not?
I drove it after putting petrol in my diesel. Now what?
Stop somewhere safe, turn off, and leave it off. Driving moves the problem along — out of your tank, into the pump and injectors. Motorists fear it a good deal more than the recovery rate warrants, mind. The one really helpful thing left to you is not restarting it.
My warranty — does a fuel drain void it?
A manufacturer's warranty survives a drain and flush done to a proper standard, which is no alteration at all. What's likelier to start a disagreement is a diesel that has been run on petrol. One more good reason for your engine to remain off.
Adding two-stroke oil, then driving home
No. Two-stroke oil is an old remedy for a different problem and it does not put back what petrol has diluted. Afterwards? Still petrol in that tank, and a pump that has to live with the stuff.
Do I need a main dealer for petrol in a diesel?
There's no need to bring it to a dealership, since we drain and clean the car wherever it is.
Still with the vehicle?
Don't turn the engine back on.
Driven it already? Then somewhere sensible, stop, turn off, and no restarting it after that. A parked, cold vehicle is the best position to be in, and this is recoverable from much more commonly than people expect.
Across Hampshire and around Rowlands Castle: on-site fuel draining, at home or on the forecourt or at the roadside.